Parse cron expressions and preview next N run times via @mukundakatta/cron-mcp — 5-field, 6-field (seconds), validation, custom from

{
  "server": "@mukundakatta/[email protected]",
  "transport": "stdio",
  "entry": "dist/server.js",
  "tools": ["next", "validate"],
  "trace": [
    {
      "tool": "next",
      "args": {
        "expression": "*/5 * * * *"
      },
      "result": {
        "expression": "*/5 * * * *",
        "from": "2026-06-22T22:10:03.967Z",
        "next": ["2026-06-22T22:15:00.000Z", "2026-06-22T22:20:00.000Z", "2026-06-22T22:25:00.000Z", "2026-06-22T22:30:00.000Z", "2026-06-22T22:35:00.000Z"]
      }
    },
    {
      "tool": "next",
      "args": {
        "expression": "0 9 * * 1-5",
        "n": 3,
        "from": "2025-01-01T00:00:00Z"
      },
      "result": {
        "expression": "0 9 * * 1-5",
        "from": "2025-01-01T00:00:00.000Z",
        "next": ["2025-01-01T09:00:00.000Z", "2025-01-02T09:00:00.000Z", "2025-01-03T09:00:00.000Z"]
      }
    },
    {
      "tool": "next",
      "args": {
        "expression": "*/30 * * * * *"
      },
      "result": {
        "expression": "*/30 * * * * *",
        "from": "2026-06-22T22:10:04.028Z",
        "next": ["2026-06-22T22:10:30.000Z", "2026-06-22T22:11:00.000Z", "2026-06-22T22:11:30.000Z", "2026-06-22T22:12:00.000Z", "2026-06-22T22:12:30.000Z"]
      }
    },
    {
      "tool": "validate",
      "args": {
        "expression": "*/5 * * * *"
      },
      "result": {
        "valid": true
      }
    },
    {
      "tool": "validate",
      "args": {
        "expression": "bad cron"
      },
      "result": {
        "valid": false,
        "error": "Validation error, cannot resolve alias "bad""
      }
    },
    {
      "tool": "next",
      "args": {
        "expression": "0 0 * * *",
        "n": 1
      },
      "result": {
        "expression": "0 0 * * *",
        "from": "2026-06-22T22:10:25.821Z",
        "next": ["2026-06-23T00:00:00.000Z"]
      }
    }
  ],
  "total_calls": 18,
  "success_rate": "100%",
  "p50_ms": 0
}